Question

How to count the number of set bits in an integer in Go

Answer 1

package main

import (
    "fmt"
    "math/bits"
)

func main() {
    num := 445; // 0001 1011 1101
    
    count := bits.OnesCount(uint(num))
    
    fmt.Printf("The number of set bits in %d is %d\n", num, count)
}




/*
run:

The number of set bits in 445 is 7

*/

 

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